Home / 21,240.98-31,859.42-6,450.03

Finding the Fourth Proportional to 21,240.98, 31,859.42 and 6,450.03

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Solution

The fourth proportional to 21,240.98, 31,859.42 and 6,450.03 is: 9,674.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240.98 : 31,859.42 = 6,450.03 : x
  2. Step 2: Convert to fraction form
    21,240.98/31,859.42 = 6,450.03/x
  3. Step 3: Cross multiply
    21,240.98x = 31,859.42 × 6,450.03
  4. Step 4: Simplify right side
    21,240.98x = 205,494,230.91
  5. Step 5: Solve for x
    x = 205,494,230.91/21,240.98
  6. Step 6: Final answer
    x = 9,674.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.